WO2005110906A3 - System for gap scanning - Google Patents

System for gap scanning Download PDF

Info

Publication number
WO2005110906A3
WO2005110906A3 PCT/GB2005/001788 GB2005001788W WO2005110906A3 WO 2005110906 A3 WO2005110906 A3 WO 2005110906A3 GB 2005001788 W GB2005001788 W GB 2005001788W WO 2005110906 A3 WO2005110906 A3 WO 2005110906A3
Authority
WO
WIPO (PCT)
Prior art keywords
gap
emitters
receivers
scanning system
gap scanning
Prior art date
Application number
PCT/GB2005/001788
Other languages
French (fr)
Other versions
WO2005110906A2 (en
Inventor
Peter Ralph Collins
Original Assignee
Airdri Ltd
Peter Ralph Collins
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Airdri Ltd, Peter Ralph Collins filed Critical Airdri Ltd
Publication of WO2005110906A2 publication Critical patent/WO2005110906A2/en
Publication of WO2005110906A3 publication Critical patent/WO2005110906A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
    • B66B13/26—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between closing doors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)

Abstract

A gap scanning system for a variable sized gap bounded on a first side by a first member and on the other side to the first side by a second member movable relative to the first member wherein a plurality of emitters of a beams of electromagnetic radiation, such as of infra red, are directed from one side of the gap of variable size to the other side to the one side where a beam from one emitter in the plurality can be received by a complementary receiver in a plurality thereof; characterised in that the number of emitters in the plurality thereof differs substantially from the number of receivers in the plurality thereof and the plurality containing the greater number of emitters or receivers is located on the first side of the gap. The invention further includes a lift door system incorporating a gap scanning system as aforesaid.
PCT/GB2005/001788 2004-05-14 2005-05-10 System for gap scanning WO2005110906A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0410735A GB2414073C (en) 2004-05-14 2004-05-14 System for gap scanning
GB0410735.5 2004-05-14

Publications (2)

Publication Number Publication Date
WO2005110906A2 WO2005110906A2 (en) 2005-11-24
WO2005110906A3 true WO2005110906A3 (en) 2006-04-27

Family

ID=32527012

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/001788 WO2005110906A2 (en) 2004-05-14 2005-05-10 System for gap scanning

Country Status (2)

Country Link
GB (1) GB2414073C (en)
WO (1) WO2005110906A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2420176B (en) 2004-11-15 2009-11-04 Memco Ltd Safety sensing system for a powered door system
CN100458491C (en) * 2007-06-12 2009-02-04 西子奥的斯电梯有限公司 Reflective single-light source door
GB201111450D0 (en) 2011-07-05 2011-08-17 Ridair Systems Ltd Method and apparatus for sensing
FI124337B (en) 2013-03-18 2014-07-15 Kone Oyj Elevator, light curtain for controlling floor opening sliding door and / or elevator car sliding door opening, and method for providing door open or door closed command in elevator
GB2619742A (en) * 2022-06-15 2023-12-20 E Track Ltd Object detection apparatus and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4794248A (en) * 1985-07-16 1988-12-27 Otis Elevator Company Detection device having energy transmitters located at vertically spaced apart points along movable doors
US4853531A (en) * 1986-02-07 1989-08-01 Efaflex Transport Und Lagertechnik Gmbh Apparatus for controllng the opening and/or closing of high-speed shutter doors
DE10100137A1 (en) * 2000-01-04 2001-08-09 Lear Corp Non-contact optoelectronic system has control module which generates motor control signal to stop and reverse vehicle door upon detection of obstruction between transmitter and sensor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002787A1 (en) * 1981-02-10 1982-08-19 Gray John E Photoelectric obstruction detector for elevator doorways
GB2353855B (en) * 1999-08-23 2002-02-20 Airdri Ltd Gap scanning

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4794248A (en) * 1985-07-16 1988-12-27 Otis Elevator Company Detection device having energy transmitters located at vertically spaced apart points along movable doors
US4853531A (en) * 1986-02-07 1989-08-01 Efaflex Transport Und Lagertechnik Gmbh Apparatus for controllng the opening and/or closing of high-speed shutter doors
DE10100137A1 (en) * 2000-01-04 2001-08-09 Lear Corp Non-contact optoelectronic system has control module which generates motor control signal to stop and reverse vehicle door upon detection of obstruction between transmitter and sensor

Also Published As

Publication number Publication date
GB2414073A (en) 2005-11-16
GB2414073B (en) 2009-04-22
WO2005110906A2 (en) 2005-11-24
GB2414073C (en) 2010-03-11
GB0410735D0 (en) 2004-06-16

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